package app import ( "strconv" ) func newInt(v int) *stringPair[int] { return &stringPair[int]{v, strconv.Itoa(v)} } // stringPair stores a value and its string representation. type stringPair[T comparable] struct { v T s string } func (s *stringPair[T]) unwrap() T { return s.v } func (s *stringPair[T]) String() string { return s.s }